Mathematics, 07.04.2020 00:48, jessv01

Let A and B be sets and let f:A→B be a function let h:P(B)→P(A) which
defined by h(Q)=f-1 (Q) for all Q€P(B).Prove that h is injective if and only if f is injective

Answers: 2

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Let A and B be sets and let f:A→B be a function let h:P(B)→P(A) which
defined by h(Q)=f-1 (Q)...